[INFO] cloning repository https://github.com/bookinstock/rust_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bookinstock/rust_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c83d144f2d500cd60a59da5019b4bc5ca7d2d36f [INFO] testing bookinstock/rust_example against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bookinstock/rust_example on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bookinstock/rust_example [INFO] finished tweaking git repo https://github.com/bookinstock/rust_example [INFO] tweaked toml for git repo https://github.com/bookinstock/rust_example written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/bookinstock/rust_example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb0a53f191eddebe470391ded8d0dc67f340c4532475b37fa122313729c8226e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "fb0a53f191eddebe470391ded8d0dc67f340c4532475b37fa122313729c8226e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb0a53f191eddebe470391ded8d0dc67f340c4532475b37fa122313729c8226e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb0a53f191eddebe470391ded8d0dc67f340c4532475b37fa122313729c8226e", kill_on_drop: false }` [INFO] [stdout] fb0a53f191eddebe470391ded8d0dc67f340c4532475b37fa122313729c8226e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4288f12c49c0fac7c11a86ca689f1c69f7cdeb6f017f94b6e69c8e9c7ceb4db4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4288f12c49c0fac7c11a86ca689f1c69f7cdeb6f017f94b6e69c8e9c7ceb4db4", kill_on_drop: false }` [INFO] [stderr] Compiling rust_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused label [INFO] [stdout] --> src/bin/control_flow.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 119 | 'inner: loop { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_labels)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `trait` [INFO] [stdout] --> src/bin/trait.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/trait.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `error` [INFO] [stdout] --> src/bin/error.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/error.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> src/bin/expression.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | x; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | x + 1; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/bin/expression.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | 2 * x; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_example` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0601]: `main` function not found in crate `other` [INFO] [stdout] --> src/bin/other.rs:1:2 [INFO] [stdout] | [INFO] [stdout] 1 | [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/other.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/bin/control_flow.rs:125:9 [INFO] [stdout] | [INFO] [stdout] 122 | break 'outer; [INFO] [stdout] | ------------ any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 125 | println!("never reach"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures` [INFO] [stdout] --> src/bin/async.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use futures::executor::block_on; [INFO] [stdout] | ^^^^^^^ use of undeclared crate or module `futures` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `test` [INFO] [stdout] --> src/bin/test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/test.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/generic.rs:217:9 [INFO] [stdout] | [INFO] [stdout] 217 | let s = S(1); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `block_on` in this scope [INFO] [stdout] --> src/bin/async.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | block_on(future); // `future` is run and "hello, world!" is printed [INFO] [stdout] | ^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/bin/scope.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let x = ToDrop; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref_x` [INFO] [stdout] --> src/bin/scope.rs:401:13 [INFO] [stdout] | [INFO] [stdout] 401 | let ref_x = &x; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Nil` [INFO] [stdout] --> src/bin/custom_type.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | struct Nil; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Rich` [INFO] [stdout] --> src/bin/custom_type.rs:117:9 [INFO] [stdout] | [INFO] [stdout] 117 | Rich, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Soldier` [INFO] [stdout] --> src/bin/custom_type.rs:123:9 [INFO] [stdout] | [INFO] [stdout] 123 | Soldier, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `std` [INFO] [stdout] --> src/bin/std.rs:64:4 [INFO] [stdout] | [INFO] [stdout] 64 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/std.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/scope.rs:405:13 [INFO] [stdout] | [INFO] [stdout] 405 | let mut ref_x = &mut x; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `unsafe` [INFO] [stdout] --> src/bin/unsafe.rs:1:2 [INFO] [stdout] | [INFO] [stdout] 1 | [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/unsafe.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ps_ref` [INFO] [stdout] --> src/bin/scope.rs:444:4 [INFO] [stdout] | [INFO] [stdout] 444 | fn ps_ref() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `S` [INFO] [stdout] --> src/bin/generic.rs:135:12 [INFO] [stdout] | [INFO] [stdout] 135 | struct S; // 具体类型 `S` [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec2` [INFO] [stdout] --> src/bin/function.rs:391:9 [INFO] [stdout] | [INFO] [stdout] 391 | let vec2 = vec![4, 5, 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `GenericVal` [INFO] [stdout] --> src/bin/generic.rs:136:12 [INFO] [stdout] | [INFO] [stdout] 136 | struct GenericVal(T); // 泛型类型 `GenericVal` [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `printer` [INFO] [stdout] --> src/bin/generic.rs:210:8 [INFO] [stdout] | [INFO] [stdout] 210 | fn printer(t: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Red` [INFO] [stdout] --> src/bin/control_flow.rs:247:9 [INFO] [stdout] | [INFO] [stdout] 247 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Blue` [INFO] [stdout] --> src/bin/control_flow.rs:248:9 [INFO] [stdout] | [INFO] [stdout] 248 | Blue, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Green` [INFO] [stdout] --> src/bin/control_flow.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSV` [INFO] [stdout] --> src/bin/control_flow.rs:251:9 [INFO] [stdout] | [INFO] [stdout] 251 | HSV(u32, u32, u32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `HSL` [INFO] [stdout] --> src/bin/control_flow.rs:252:9 [INFO] [stdout] | [INFO] [stdout] 252 | HSL(u32, u32, u32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMY` [INFO] [stdout] --> src/bin/control_flow.rs:253:9 [INFO] [stdout] | [INFO] [stdout] 253 | CMY(u32, u32, u32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CMYK` [INFO] [stdout] --> src/bin/control_flow.rs:254:9 [INFO] [stdout] | [INFO] [stdout] 254 | CMYK(u32, u32, u32, u32), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/bin/function.rs:431:16 [INFO] [stdout] | [INFO] [stdout] 431 | array2.into_iter().find(|&&x| x == 2) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 431 | array2.iter().find(|&&x| x == 2) [INFO] [stdout] | ^^^^ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 431 | IntoIterator::into_iter(array2).find(|&&x| x == 2) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "4288f12c49c0fac7c11a86ca689f1c69f7cdeb6f017f94b6e69c8e9c7ceb4db4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4288f12c49c0fac7c11a86ca689f1c69f7cdeb6f017f94b6e69c8e9c7ceb4db4", kill_on_drop: false }` [INFO] [stdout] 4288f12c49c0fac7c11a86ca689f1c69f7cdeb6f017f94b6e69c8e9c7ceb4db4